.container {
  padding: 20px;
  border: 1px solid #ccc;

}

header {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.btn {
  padding: 10px 15px;
  background: black;
  color: white;
  border: none;
  outline: none;
  border-radius: 5px;
  margin-bottom: 10px;

}

.task {
  background: #F2F2F2;
  padding: 10px;
  margin-bottom: 5px;
}

.reminder {
  border-left: 5px solid green;
}
.task h3 {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
